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51.发明授权公开(公告)号：US10594439B2
公开(公告)日：2020-03-17
申请号：US16118740
申请日：2018-08-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lingchen Huang , Shengchen Dai , Chen Xu , Yunfei Qiao , Rong Li
Abstract: This application provides an encoding method and apparatus in wireless communications between a network device and a terminal. The method includes: performing CRC encoding on A to-be-encoded information bits based on a CRC polynomial, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and A information bits, L=11; and performing polar encoding on the first bit sequence. Based on an improved CRC polynomial, encoding satisfying an FAR requirement is implemented.
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公开(公告)号：US10447432B2
公开(公告)日：2019-10-15
申请号：US16354194
申请日：2019-03-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen Dai , Huazi Zhang , Rong Li , Yunfei Qiao , Yue Zhou
Abstract: Embodiments of this application provide a method for processing information bits in a wireless communication network. A communication device obtains K information bits and a code length M. The code length M is a length of an output sequence resulting from processing the information bits. The communication device generates an N-bit bit sequence that includes the K information bits and one or more parity check bits, encodes the bit sequence using a polar encoding formula to obtain an N-bit encoded sequence, rate matches the encoded sequence to obtain the output sequence, and outputs the output sequence. When M−K>192, in the bit sequence, one of the parity check bits is placed in a bit position that is determined according to reliabilities of the bit positions in the bit sequence for placing the K information bits and the one or more parity check bits.
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公开(公告)号：US20190260526A1
公开(公告)日：2019-08-22
申请号：US16291919
申请日：2019-03-04
Applicant: Huawei Technologies Co., Ltd.
Inventor： Gongzheng Zhang , Jian Wang , Yunfei Qiao
Abstract: This application provides a pilot transmission method, including: determining, by a first terminal device, a target first pilot and a target second pilot group corresponding to the target first pilot, where the target first pilot is used by a network device to perform terminal device detection, and the target second pilot group includes at least two second pilots; and sending, by the first terminal device, the target first pilot and the target second pilot group to the network device in a time unit, where each second pilot in the target second pilot group is repeatedly sent on at least two symbols of the time unit, and the target second pilot group is used by the network device to perform frequency offset estimation.
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公开(公告)号：US20190149268A1
公开(公告)日：2019-05-16
申请号：US16249910
申请日：2019-01-17
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Chen Xu , Rong Li , Gongzheng Zhang , Yue Zhou , Lingchen Huang , Yunfei Qiao , Carmela Cozzo , Yiqun Ge
IPC: H04L1/00
Abstract: Embodiments of this application provide a method for encoding data in a wireless communication network. A communication device obtains an information bit sequence of a bit length K and a code length M. When M is greater than or equal to a first threshold and K is greater than or equal to a second threshold, the device divides the information bit sequence into p subsequences that are of an equal length K1. Then the device encodes each of the p subsequence to obtain p encoded subsequences. The device rate-matches each of the p encoded subsequences to obtain p rate matched subsequences, concatenates the p rate matched subsequences to obtain the output sequence of the code length M, then outputs the output sequence.
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公开(公告)号：US20190044656A1
公开(公告)日：2019-02-07
申请号：US16146429
申请日：2018-09-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lingchen Huang , Shengchen Dai , Chen Xu , Yunfei Qiao , Rong Li
IPC: H04L1/00
Abstract: This application provides a channel encoding method and apparatus in wireless communications. The method includes: performing CRC encoding on A to-be-encoded information bits, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and A information bits; performing an interleaving operation on the first bit sequence, to obtain a second bit sequence, where a first interleaving sequence used for the interleaving operation is obtained based on a system-supported maximum-length interleaving sequence with the length of Kmax+L, and Kmax is a maximum information bit quantity corresponding to the maximum-length interleaving sequence and a preset rule, and a length of the first interleaving sequence is equal to A+L. Therefore, during distributed CRC encoding, when an information bit quantity is less than the maximum information bit quantity, an interleaving sequence required for completing an interleaving process is obtained based on the system-supported maximum-length interleaving sequence.
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Patent Agency Ranking
公开(公告)号：US12279220B2
公开(公告)日：2025-04-15
申请号：US18424227
申请日：2024-01-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chuili Kong , Gongzheng Zhang , Yunfei Qiao , Yinggang Du
IPC: H04W56/00
Abstract: This application discloses a communication method. The method includes: A terminal device obtains a first message, where the first message carries target adjustment information. The terminal device obtains a second message, where the second message carries a timing advance (TA). The terminal device adjusts uplink sending time based on the target adjustment information and the TA. Embodiments of this application further provide a corresponding terminal device, network device, and storage medium.
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公开(公告)号：US20250008477A1
公开(公告)日：2025-01-02
申请号：US18884547
申请日：2024-09-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ying Chen , Chuili Kong , Yu Wang , Yue Zhou , Yunfei Qiao
Abstract: Example methods, apparatuses, and computer-readable storage media are provided. An example method includes determining, by a first communication apparatus, a first timing advance (TA) between the first communication apparatus and an access network device at a first moment. The method further includes sending, by the first communication apparatus to a network device, a first parameter corresponding to the first TA. The method further includes determining, by the first communication apparatus, a second TA between the first communication apparatus and the access network device at a second moment. The method further includes sending, by the first communication apparatus to the network device, a second parameter corresponding to the second TA. The sending causes the network device to position the first communication apparatus based on the first parameter and the second parameter, or send the first parameter and the second parameter to another network device.
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公开(公告)号：US12158513B2
公开(公告)日：2024-12-03
申请号：US17609326
申请日：2020-03-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Meixin Lin , Yunfei Qiao , Xian Meng , Jun Wang
Abstract: This application provides a handover method and apparatus in satellite communications. The handover method in satellite communications in this application includes: obtaining, by a terminal device, ephemeris information of first satellite base stations, where the first satellite base stations are satellite base stations that cover the terminal device; determining, by the terminal device based on the ephemeris information, a destination satellite base station to which the terminal device needs to hand over; determining, by the terminal device based on the determined destination satellite base station, a first time at which the terminal device is to hand over to the destination satellite base station; and handing over, by the terminal device based on the determined first time, to a destination cell served by the destination satellite base station. This application reduces power consumption of the terminal device, saves air interface resources, and further avoids a signaling storm caused because a large quantity of terminal devices report measurement information at the same moment, thereby increasing a handover success rate.
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公开(公告)号：US12088536B2
公开(公告)日：2024-09-10
申请号：US18150930
申请日：2023-01-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhenjun Jiang , Yunfei Qiao , Jianwei Zhou , Chenlei Xu
CPC classification number: H04L5/0098 , H04L5/023
Abstract: The present disclosure relates to methods for indicating a direct current subcarrier and communication apparatuses. In one example method, a second communication apparatus may explicitly or implicitly indicate a location of a first direct current subcarrier and a location of a second direct current subcarrier to a first communication apparatus. The first direct current subcarrier is a direct current subcarrier corresponding to a transmit frequency used by the second communication apparatus. The second direct current subcarrier is a direct current subcarrier corresponding to a receive frequency used by the first communication apparatus.
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公开(公告)号：US11974214B2
公开(公告)日：2024-04-30
申请号：US17542067
申请日：2021-12-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin Wang , Yunfei Qiao
Abstract: A communication network search method and an apparatus are disclosed. The method can include a terminal device sending a first message to a network device, where the first message includes a communication network type of the terminal device and first location information that is used during the sending of the first message. The terminal device receives a second message sent by the network device, where the second message includes N cell identifiers that are used to mark N pre-selected cells, which are determined by the network device based on the first location information and the communication network type. The terminal device determines M target cells in the N pre-selected cells based on second location information and motion status information that are used during the receiving of the second message. The terminal device searches for the M target cells.
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